how can I show the categories inline in a widget?? I already tried using the wp function wp_list_categories ('style = none') and using the php function str_replace to replace the tags br but without success. Thanks

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    Questions are meant to be references for later visitors as well. Please rework your questions spelling/punctuation/grammar/capitalization so it as as easy to read as possible. Thanks. Aside from that: Please show your actual code. – kaiser Nov 14 '13 at 13:37

wp_list_categories ('style = none') will echo its content as it goes. It won't pass back string that you can replace. You need to use the wp_list_categories filter to strip the <br /> tags.

  function($str) {
    return str_replace('<br />','',$str);

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